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Title:
CONTROL SYSTEM FOR DOWNHILL WORKING CONDITION, AND ELEVATED WORK VEHICLE
Document Type and Number:
WIPO Patent Application WO/2024/051201
Kind Code:
A1
Abstract:
A control system for a downhill working condition, and an elevated work vehicle. The control system (1) comprises: a voltage measurement apparatus (10), which is used for measuring a direct-current bus voltage of a driver; a first current capture apparatus (20), which is used for capturing a feedback current delivered by the driver; a first switch apparatus (30), which is used for conducting a first circuit in which the first current capture apparatus (20) is located; and a control apparatus (40), which is used for conducting the first circuit by controlling the first switch apparatus (30) when the direct-current bus voltage is equal to or greater than a first preset voltage, such that the first current capture apparatus (20) captures the feedback current. The system can intervene in a control strategy to reduce a direct-current bus voltage of a driver by means of capturing a feedback current, so as to prevent the braking torque from becoming smaller, thereby effectively reducing the risk of downhill stalling.

Inventors:
REN HUILI (CN)
ZHONG YI (CN)
ZHANG BIN (CN)
ZHU HOU (CN)
XIONG LU (CN)
YANG CUNXIANG (CN)
SHEN YUQIANG (CN)
Application Number:
PCT/CN2023/093829
Publication Date:
March 14, 2024
Filing Date:
May 12, 2023
Export Citation:
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Assignee:
ZOOMLION INTELLIGENT ACCESS MACHINERY CO LTD (CN)
International Classes:
B60L7/10; B60L3/00; B60L53/22; B60L58/15; H02J7/14
Domestic Patent References:
WO2022027984A12022-02-10
WO2012137315A12012-10-11
Foreign References:
CN112910068A2021-06-04
CN213367428U2021-06-04
CN213305000U2021-05-28
CN112078368A2020-12-15
CN105904971A2016-08-31
CN205768711U2016-12-07
CN111409465A2020-07-14
CN114734824A2022-07-12
US4352049A1982-09-28
Attorney, Agent or Firm:
RUNPING & PARTNERS (CN)
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